PaperBack

These books are a bit pricier than we had hoped, but not
overwhelmingly so and still under $50. The problem is that there is no
inexpensive way to manufacture a color paperback book. Cosmos in Collision
is heavily illustrated and the illustrations work much better in color. If
you think of C in C as a textbook of sorts, it will be one of the less expensive
ones in today's market and the illustratios are substantially above average for textbooks.